1366 - Incorrect integer value: '' for column `mapshopatlogis`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', 'd44aeebd279d1c0d0fa022e5ceba1d87', '216.73.216.145', '1761003625', '1761003625', '/index.php/cat/c30_Countries.html/page/2')

[XT SQL Error]